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John deer 175 hydro tractors wont start

Has spark compression fuel and timed rite

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How to time crankshaft and camshaft on a 1950 john deere a


this was a issue when I first started out BUT is simple spark any cylinder top dead center both valves closed TDC This must be taken in consideration when initially setting timing of the cam/ so run the piston up (slowly by hand) see both valves ar closed. this is a compression stroke and should be relitive to the distributor or the SPARK . works on all motors

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John Deer 175 hyudro tractor with Kawasaki FC420V-DS00 engine. Starter stopped turning engine over yesterday.


you can tell by bypassing the solenoid with a jumper wire, just touch it from one terminal to the other and if starter jumps you know it is good but only jump for a second do not connect only touch.

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How you adjust the drive belt on a jdgator 626


John Deere AMT 626 and Kawaski 175 - YouTube

? 4:49
www.youtube.com/watch?v=M2ZcIAMySpI
Jun 28, 2012 - Uploaded by pupbiking Just had a AMT given to me so will work on restoring it lucky it runs after some work ... John Deere AMT 626 and Kawaski 175 ... I tightened up the belt and the chain, Wondering what your chain looks like at the tensioner? ... check out my next video on the amt i got it all done now i did adjust the tensioner so ..

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1 Answer

Why wont my car start


If the engine is turning over and not starting there are many possibilities. If the engine will not crank over at all, then suspect a bad battery, bad battery positive or negative cables/connections, or a bad starter.


If the engine turns over but will not start the most common issues on this engine would be a failed ignition module, or coils, a bad fuel pump, or the engine timing has jumped. The fuel is simple to test if you have a fuel pressure gauge. If you don't you may need professional assistance at that point.


The ignition can be tested by removing the coil housing assembly from the top of the engine and using an old spark plug to check to see if you have spark. The side electrode must be grounded to the engine (this is critical). If there is no spark try all 4. If none of them spark you have a failed coil/ignition module, failed crankshaft position sensor or poor power or ground to the coil.


If you have fuel pressure and you have spark its time to bite the bullet and pull the spark plugs out of the engine to measure compression and leakdown. Compression typically ranges from 140 to 175 PSI on this engine. Measure all 4 cylinders, if all 4 are low, the engine has jumped time and the valves are likely damaged

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1 Answer

Motor spinnig freely when trying to start like no compression in motor and wont start after timing belt was fitted wrong in a 1995 toyota landcruiser


if belt was not put on properly car wont run. if its improperly timed valves are opening and closing when they shouldnt be. which inturn will not ,ix air gas and timing spark. when belt is on wrong it will seem like no compression because valves are improperly working. belt must be put on the rite way for your car to run.

Jan 29, 2014 | 2001 Chrysler Voyager

1 Answer

My 2004 chevy malibu classic 4 cyl wont start its


There are four things required for an engine to run: air, fuel, compression and properly timed spark. If you have fuel and timed spark, the only two variables are air and compression. Air is not the likely problem, and compression should be good unless you blew a head gasket or the rings in all four cylinders. How did you determine that you have fuel and spark? Those are the two most likely problem areas.

Oct 10, 2013 | 2005 Chevrolet Malibu

1 Answer

Car wont start or fire even with starting fluid


To review - - if you have spark, fuel, and compression, you should have combustion.
In this case, if the timing belt is damaged, you might not have compression or spark at the right time.
A faulty crank or cam sensor could cause you not to have spark at the right time.
The spark plugs could be worn out or fuel fouled and not able to fire under compression.
Did the car die or just not start ?

Jun 26, 2012 | 2002 Toyota Avalon

1 Answer

Have a 1985 buick centruy with a 2.5 seems like its loading up with to much fuel wont start.I have spark timing is good, compression good, and changed the temp sensor. tried a different maf sensor(used)...


If you have spark, and the timing is good, you are either not getting enough fuel or there is not enough compression. If you checked the spark from the spark plug wires and got a spark, try changing the spark plugs. The spark from the plugs may be too weak to ignite the fuel.

Have you changed your fuel filter? This is a very common cause of a no start condition. Have your fuel pressure tested to ensure you are getting the correct amount of fuel. Also, you could try replacing your Fuel Pressure Regulator.

Feb 17, 2011 | 1985 Buick Century

1 Answer

Crank no start


Remove the plugs and check you are getting compressions to the cylinders first, preferably with a compression guage, but you could use a finger, possibly this is the problem.
Suspect either bent valves or your valve timing is out?

Good Luck !
John.

Jan 13, 2009 | 2004 Kia Optima

1 Answer

2000 cherokee wont start


Timing The ignition system on your car has to work in perfect concert with the rest of the engine. ­The goal is to ignite the fuel at exactly the right time so that the expanding gases can do the maximum amount of work. If the ignition system fires at the wrong time, power will fall and gas consumption and emissions can increase.
When the fuel/air mixture in the cylinder burns, the temperature rises and the fuel is converted to exhaust gas. This transformation causes the pressure in the cylinder to increase dramatically and forces the piston down.the spark should occur before the piston reaches the top of the compression stroke, so by the time the piston starts down into its power stroke the pressures are high enough to start producing useful work.

Aug 14, 2008 | 2000 Jeep Grand Cherokee

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